/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.tajo.algebra;

import com.google.common.base.Objects;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
import org.apache.tajo.util.TUtil;

public class ValueListExpr extends Expr {
  @Expose @SerializedName("Values")
  private Expr[] values;

  public ValueListExpr(Expr[] values) {
    super(OpType.ValueList);
    this.values = values;
  }

  public Expr[] getValues() {
    return values;
  }

  @Override
  public int hashCode() {
    return Objects.hashCode(values);
  }

  @Override
  boolean equalsTo(Expr expr) {
    ValueListExpr valueListExpr = (ValueListExpr) expr;
    return TUtil.checkEquals(values, valueListExpr.values);
  }

  @Override
  public Object clone() throws CloneNotSupportedException {
    ValueListExpr valueListExpr = (ValueListExpr) super.clone();
    valueListExpr.values = new Expr[values.length];
    for (int i = 0; i < values.length; i++) {
      valueListExpr.values[i] = (Expr) values[i].clone();
    }
    return valueListExpr;
  }
}
